Thermal analysis on hydroxyapatite synthesis through mechanochemical method
Thermal analysis of hydroxyapatite formation through dry mechanochemical method has been studied. The calcium phosphate was synthesized using calcium hydroxide and di-ammonium hydrogen phosphate as the precursors. The ball milling of 1/6 ball-powder mass ratio was employed on mixtures of calciu...
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Springerlink
2011
|
| Subjects: | |
| Online Access: | http://irep.iium.edu.my/21862/ http://irep.iium.edu.my/21862/2/thermal_analysis_-IS.pdf |
| Summary: | Thermal analysis of hydroxyapatite formation
through dry mechanochemical method has been studied. The
calcium phosphate was synthesized using calcium hydroxide
and di-ammonium hydrogen phosphate as the precursors. The
ball milling of 1/6 ball-powder mass ratio was employed on
mixtures of calcium hydroxide and di-ammonium hydrogen
phosphate in three different speeds 170, 270 and 370 rpm for
15 h. As ball-milled powders were then sintered at 1150, 1250
and 1350oC for 2 h, then subjected to TGA, XRD and FTIR for
phase characterization. Calcium phosphates with ammonium
are phases of the material. The ammonium is trace of phosphorus
precursor. Choosing condition of the process and type
of precursors determines type of reactions and its products. |
|---|